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Aurelia:在路由器的管道步驟中,如何將變量綁定到該路由器?

[英]Aurelia: During a Router's Pipeline Step, how do I bind a variable to that router?

我想將在AuthorizeStep期間找到的用戶傳遞給App class ,然后傳遞給home module

這就是我所擁有的:

export class App {
    configureRouter(config, router) {
        config.addPipelineStep('authorize', AuthorizeStep); 
        config.map([
            {route: ['', ':filter'], name: "", moduleId: 'welcome'}
            {route: 'home', name: "home", moduleId: 'home' auth:true}
        ]);
        this.router = router;
    }
}

class AuthorizeStep {
    run(routingContext, next) {
        if (routingContext.nextInstructions.some(i => i.config.auth)) {
            this.client.get('auth/login')
                .then(response => {
                    this.user = response.content;
                });
        }
        return next();
    }
}

在我的應用程序中,我創建了一個名為AuthContext的類,其中包含currentUser屬性。 您可以將其注入AuthorizeStep的構造函數中,然后將其注入需要它的任何其他模型中。 就像是...

import {AuthContext} from './auth-context';

export class App {
    static inject() { return [AuthContext];}

    constructor(authcontext){
        this.authContext = authcontext;
    }

    configureRouter(config, router) {
         config.addPipelineStep('authorize', AuthorizeStep); 
         config.map([
            {route: ['', ':filter'], name: "", moduleId: 'welcome'}
            {route: 'home', name: "home", moduleId: 'home' auth:true}
        ]);
        this.router = router;
    }
}

class AuthorizeStep {
    static inject() { return [AuthContext];}

    constructor(authcontext){
        this.authContext = authcontext;
    }
    run(routingContext, next) {
        if (routingContext.nextInstructions.some(i => i.config.auth)) {
            this.client.get('auth/login')
                .then(response => {
                    this.authcontext.user = response.content;
                });
        }
        return next();
    }
}

我一直在做類似的事情,但我發現在連接viewmodel時我不能依賴於在其他視圖authcontext中填充的authcontext 返回由返回的承諾get ,然后返回next()的分辨率內get似乎解決了,這個想法是不進入下一個流水線步驟,直到這一個已經解決了。 將其應用於@JamesCarters的答案 ,我會得到以下(未經測試的)代碼:

class AuthorizeStep {
    static inject() { return [AuthContext];}

    constructor(authcontext){
        this.authContext = authcontext;
    }
    run(routingContext, next) {
        if (routingContext.nextInstructions.some(i => i.config.auth)) {
            return this.client.get('auth/login')
                .then(response => {
                    this.authcontext.user = response.content;
                    return next();
                });
        }
        else {
            return next();
        }
    }
}

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